Ethereum will dominate the smart contract business. Don´t worry.
Counterparty is not the only
already working competitor, don't relax too much...
What
already working competitors are there, and by already working I mean on main net (not test net)?
I know NXT has AT on test net, counterparty has smart contracts on test net, and ripple has codius (but I heard it's still being developed).
I have not heard of any coin with something on main net.